CN111746937A - Packaging material and packaging bag - Google Patents
Packaging material and packaging bag Download PDFInfo
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- CN111746937A CN111746937A CN201910232109.0A CN201910232109A CN111746937A CN 111746937 A CN111746937 A CN 111746937A CN 201910232109 A CN201910232109 A CN 201910232109A CN 111746937 A CN111746937 A CN 111746937A
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- layer
- packaging material
- thymol
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- packaging bag
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Wrappers (AREA)
- Bag Frames (AREA)
Abstract
The invention discloses a packaging material and a packaging bag, and relates to the technical field of packaging bags. The main technical scheme of the invention is as follows: a packaging material, comprising: the substrate layer, the reinforcing layer and the bacteriostatic layer are sequentially stacked; when the packaging bag is made of the packaging material, the antibacterial layer is located on the inner layer of the packaging bag and can volatilize substances for inhibiting the growth of bacteria. When the packaging bag is manufactured by using the packaging material provided by the embodiment of the invention, the antibacterial layer of the packaging material can be arranged on the inner layer of the packaging bag, and the packaging bag is used for containing grains or feeds, so that the growth of aspergillus flavus in the grains and the feeds can be effectively inhibited, the quality guarantee period of the grains and the feeds is prolonged, and the waste of the grains or the feeds caused by mildew is avoided.
Description
Technical Field
The invention relates to the technical field of packaging bags, in particular to a packaging material and a packaging bag.
Background
At present, human grain and animal feed are transported and stored after being packaged by a packaging bag, the grain and feed are more conveniently transported and carried by the packaging bag, and meanwhile, the food and feed can be protected to prevent pollution.
However, the prior art, after using the packaging bag to contain the grain and the animal feed, has encountered the following technical problems: the grains and the feed begin to go mouldy after being loaded in the packaging bag for a period of time, and the investigation finds that the grains and the feed are mainly wasted in the world due to the mouldness of the grains and the feed. Therefore, the above technical problems are urgently needed to be solved.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a packaging material and a packaging bag, which have a function of inhibiting bacterial growth.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
in one aspect, an embodiment of the present invention provides a packaging material, including:
the substrate layer, the reinforcing layer and the bacteriostatic layer are sequentially stacked;
when the packaging bag is made of the packaging material, the antibacterial layer is located on the inner layer of the packaging bag and can volatilize substances for inhibiting the growth of bacteria.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, in the packaging material, the substrate layer is made of a polymer material, or the substrate layer is made of a paper material.
Preferably, in the packaging material, the reinforcing layer is made of a carbon fiber material, or the reinforcing layer is made of an ultra-high molecular weight polyethylene material.
Preferably, the packaging material is prepared by mixing polyolefin, thymol and thymol sustained-release capsules.
Preferably, in the packaging material, the mass percentage of the polyolefin in the antibacterial layer is 92% -98%, and the mass percentage of the thymol and the thymol slow-release capsule added together is 2% -8%.
Preferably, in the packaging material, the mass of the thymol sustained-release capsule accounts for 30-60% of the total mass of the thymol and the thymol sustained-release capsule.
Preferably, the packaging material is a film, a sheet, a film, a laminate, a.
Preferably, the thymol sustained-release capsule is a structure in which a layer of cyclodextrin and a layer of cyclodextrin derivative are coated on the surface of thymol particles.
Preferably, the packaging material further comprises: and the reticular polymer film layer is arranged on the surface of the bacteriostatic layer in a laminating way.
On the other hand, the embodiment of the present invention further provides a packaging bag, including:
the packaging bag is made of packaging materials;
the packaging material comprises: the substrate layer, the reinforcing layer and the bacteriostatic layer are sequentially stacked;
wherein the bacteriostatic layer can volatilize a substance inhibiting the growth of bacteria; the bacteriostatic layer of the packaging material is positioned on the inner layer of the packaging bag.
By the technical scheme, the packaging material and the packaging bag at least have the following advantages:
the packaging material provided by the embodiment of the invention is additionally provided with the antibacterial layer which can volatilize substances for inhibiting the growth of bacteria, so that when the packaging material provided by the embodiment of the invention is used for manufacturing the packaging bag, the antibacterial layer of the packaging material can be arranged on the inner layer of the packaging bag, and the packaging bag is used for containing grains or feeds, so that the growth of aspergillus flavus in the grains and the feeds can be effectively inhibited, the quality guarantee period of the grains and the feeds is prolonged, and the waste of the grains or the feeds caused by mildew is avoided.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a packaging material according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another packaging material provided in the embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the packaging material and the packaging bag according to the present invention, the detailed description, the structure, the features and the effects thereof are provided in the accompanying drawings and the preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Example one
As shown in fig. 1, a packaging material according to an embodiment of the present invention includes: the antibacterial fabric comprises a substrate layer 1, a reinforcing layer 2 and an antibacterial layer 3 which are sequentially stacked; when the packaging bag is made of the packaging material, the antibacterial layer 3 is positioned in the inner layer of the packaging bag, and the antibacterial layer 3 can volatilize substances for inhibiting the growth of bacteria.
Specifically, the substrate layer 1 is an outermost protective layer in the manufacture of a packaging bag from a packaging material, and may be made of a polymer material, such as a laminated structure woven from a polymer material, a film structure of a polymer material, and the like, and the polymer material may be polyethylene, polypropylene, and the like, or a paper material may be used as the substrate layer 1, such as "kraft paper" is used as the substrate layer 1; in addition, the thickness and the strength of the substrate layer 1 can be specifically set according to the use requirement, for example, when the packaging material needs to have higher strength, the substrate layer 1 can be set to be thicker, and the material with high strength is selected for manufacturing. In addition, the thickness of the substrate layer 1 can be set by referring to the thickness commonly used in the prior art, and is not described herein again.
The reinforcing layer 2 is a reinforcing layer of the packaging material, the layer needs to be made of a material with higher strength than the matrix layer 1, for example, a carbon fiber material or an ultra-high molecular weight polyethylene material, and the thickness of the reinforcing layer 2 can be set according to specific use requirements, for example, when the strength of the reinforcing layer 2 is high, the layer can be set to be thicker. In addition, the thickness of the reinforcing layer 2 can be set by referring to the thickness commonly used in the prior art, and is not described in detail herein.
The antibacterial layer 3 can be a mixture of a polyolefin material with good flowability and a volatile antibacterial substance, so that the antibacterial layer 3 can inhibit the growth of bacteria, particularly the growth of aspergillus flavus and escherichia coli, through the volatilization of the antibacterial substance.
According to the packaging material provided by the embodiment of the invention, the antibacterial layer 3 is additionally arranged, and the antibacterial layer 3 can volatilize substances for inhibiting the growth of bacteria, so that when the packaging material provided by the embodiment of the invention is used for manufacturing the packaging bag, the antibacterial layer 3 of the packaging material can be arranged on the inner layer of the packaging bag, and the packaging bag is used for containing grains or feeds, so that the growth of aspergillus flavus in the grains and the feeds can be effectively inhibited, the quality guarantee period of the grains and the feeds is prolonged, and the waste of the grains or the feeds caused by mildew is avoided.
In the specific embodiment, as shown in fig. 1, the antibacterial layer 3 is prepared by mixing polyolefin, thymol and thymol sustained-release capsules.
Specifically, polyolefin materials have good fluidity and are suitable for being used as a matrix of the composite film layer, so that polyolefin is selected as the main base material of the antibacterial layer 3. Thymol is monoterpene, is a phenol derivative of p-cymene (p-cymene), has a molecular formula of C10H14O, is an isomer with carvacrol, is named after being found in thyme, is a white crystalline solid obtained by extraction, has pleasant aromatic odor and strong bactericidal action, and has negligible influence on human and organisms due to trace amount of thymol, so that thymol can be used as an antibacterial agent, the bacteriostatic layer 3 mixed with thymol can inhibit the growth of bacteria through volatilization of thymol, and particularly when food and feed are contained in a packaging bag containing the bacteriostatic layer 3 containing thymol, the thymol can inhibit the growth of aspergillus flavus which causes the mildew of the food and feed, and further the food and the feed can be stored for a long time. In addition, the overall thickness of the bacteriostatic layer 3 can be set according to specific use requirements, for example, the thickness of the built-in film layer of the packaging material can be referred to. In addition, the thymol sustained-release capsule can delay the release of thymol, and the structure of the sustained-release capsule can refer to the structure of a sustained-release capsule in medicine.
As shown in fig. 1, further, it is preferable that the mass percentage of the polyolefin in the antibacterial layer 3 is 92% to 98%, for example, 96%; the mass percentage of the thymol and the thymol slow-release capsule added together is 2-8%, for example, the mass percentage is 4%.
Specifically, the percentage content can ensure that the antibacterial layer 3 has certain strength and toughness, and simultaneously ensure that the amount of the volatile antibacterial substance is in a proper range, so that grains or feeds cannot be polluted due to too high content, and the antibacterial performance cannot be reduced due to too low content. In addition, through specific experimental verification, the packaging bag manufactured by using the packaging material with the content of thymol is found to store food or feed without mildewing within 45 days.
As shown in fig. 1, it is further preferable that the mass of the thymol sustained release capsule is 30 to 60% of the total mass of the thymol and the thymol sustained release capsule, for example, the mass of the thymol sustained release capsule is 40% of the total mass of the thymol and the thymol sustained release capsule.
In particular implementations, as shown in fig. 1, the polyolefin in the bacteriostatic layer 3 is preferably polypropylene or polyethylene.
In particular, polypropylene or polyethylene has good flowability, can be made into a plastic film and is suitable for being used as a built-in film layer of a packaging material, and polypropylene or polyethylene is preferably used as a matrix material of the antibacterial layer 3.
In specific implementation, the thymol sustained-release capsule is a structure in which a layer of cyclodextrin and a cyclodextrin derivative layer is wrapped on the surface of thymol particles.
Specifically, the slow-release thymol capsule can be prepared by a volatilization method, a deposition method or a grinding method. The volatilization method comprises mixing thymol with cyclodextrin and cyclodextrin derivatives with solvent such as alcohol, stirring, and volatilizing alcohol to obtain thymol sustained-release capsule structure; the deposition method comprises the steps of mixing thymol, cyclodextrin and cyclodextrin derivatives, adding a deposition agent into the mixture, and depositing a thymol slow-release capsule structure on the bottom layer of the mixture to obtain the thymol slow-release capsule structure; the grinding method is to wrap the cyclodextrin and the cyclodextrin derivative on the surface of the thymol by grinding the thymol, the cyclodextrin and the cyclodextrin derivative, so as to obtain the thymol sustained-release capsule structure.
As shown in fig. 2, in a specific implementation, the packaging material provided in the embodiment of the present invention further includes: and a mesh polymer film layer 4 laminated on the surface of the antibacterial layer 3.
Specifically, polymer film layer can be the polyethylene film, and it sets up to netted when guaranteeing that volatilization of thymol is not influenced, can also protect strong antibacterial layer 3, makes antibacterial layer 3 avoid wearing and tearing.
Example two
The second embodiment of the present invention provides a packaging bag, which includes: the packaging bag is made of packaging materials; as shown in fig. 1, the packaging material includes: the antibacterial fabric comprises a substrate layer 1, a reinforcing layer 2 and an antibacterial layer 3 which are sequentially stacked; wherein the antibacterial layer 3 can volatilize substances for inhibiting the growth of bacteria; the bacteriostatic layer 3 of the packaging material is positioned on the inner layer of the packaging bag.
Specifically, the packaging material provided in the first embodiment can be directly used as the packaging material described in the second embodiment, and the specific implementation structure can refer to the related contents described in the first embodiment, and details are not described here. Wherein, the specific structure of wrapping bag can be designed according to the use needs, and this is no longer repeated here.
According to the packaging bag provided by the embodiment of the invention, the antibacterial layer 3 is additionally arranged on the used packaging material, and the antibacterial layer 3 can volatilize substances for inhibiting the growth of bacteria, so that when the packaging bag is manufactured by using the packaging material provided by the embodiment of the invention, the antibacterial layer 3 of the packaging material can be arranged on the inner layer of the packaging bag, and the packaging bag is used for containing grain or feed, so that the growth of aspergillus flavus in the grain or feed can be effectively inhibited, the quality guarantee period of the grain or feed is prolonged, and the waste of the grain or feed caused by mildew is avoided.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A packaging material, comprising:
the substrate layer, the reinforcing layer and the bacteriostatic layer are sequentially stacked;
when the packaging bag is made of the packaging material, the antibacterial layer is located on the inner layer of the packaging bag and can volatilize substances for inhibiting the growth of bacteria.
2. The packaging material of claim 1,
the substrate layer is made of high polymer materials, or the substrate layer is made of paper materials.
3. The packaging material of claim 1,
the reinforcing layer is made of carbon fiber materials, or the reinforcing layer is made of ultra-high molecular weight polyethylene materials.
4. The packaging material of claim 1,
the antibacterial layer is prepared by mixing polyolefin, thymol and thymol sustained-release capsules.
5. The packaging material of claim 4,
the mass percentage of the polyolefin in the antibacterial layer is 92-98%, and the mass percentage of the thymol and the thymol slow-release capsule added together is 2-8%.
6. The packaging material of claim 5,
the mass of the thymol slow-release capsule accounts for 30-60% of the total mass of the thymol and the thymol slow-release capsule.
7. The packaging material of claim 5,
the polyolefin is polypropylene or polyethylene.
8. The packaging material of claim 4,
the thymol slow-release capsule is in a structure that a layer of cyclodextrin and a cyclodextrin derivative layer are wrapped on the surface of thymol particles.
9. The packaging material of claim 1, further comprising:
and the reticular polymer film layer is arranged on the surface of the bacteriostatic layer in a laminating way.
10. A package, comprising:
the packaging bag is made of the packaging material according to any one of claims 1 to 9;
wherein, the bacteriostatic layer of the packaging material is positioned on the inner layer of the packaging bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232109.0A CN111746937A (en) | 2019-03-26 | 2019-03-26 | Packaging material and packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232109.0A CN111746937A (en) | 2019-03-26 | 2019-03-26 | Packaging material and packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111746937A true CN111746937A (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910232109.0A Pending CN111746937A (en) | 2019-03-26 | 2019-03-26 | Packaging material and packaging bag |
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| Country | Link |
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| CN (1) | CN111746937A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800063A (en) * | 2016-04-14 | 2016-07-27 | 太仓市源创包装材料厂 | Freshness retaining and bacterium inhibiting plastic packaging bag for foods |
| CN206297233U (en) * | 2016-12-09 | 2017-07-04 | 闽南师范大学 | A kind of Novel antibacterial CPP films |
| CN206665224U (en) * | 2017-04-11 | 2017-11-24 | 中国农业科学院麻类研究所 | A kind of flaxen fiber Fresh-keeping Packaging for Fruits and Vegetables bag |
| CN107627706A (en) * | 2017-09-18 | 2018-01-26 | 上海海洋大学 | Degradable high-barrier active fresh-keeping film and preparation method thereof |
| CN207791610U (en) * | 2018-01-31 | 2018-08-31 | 广东新天丽控股有限公司 | A kind of high-barrier antibacterial food packaging film |
-
2019
- 2019-03-26 CN CN201910232109.0A patent/CN111746937A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800063A (en) * | 2016-04-14 | 2016-07-27 | 太仓市源创包装材料厂 | Freshness retaining and bacterium inhibiting plastic packaging bag for foods |
| CN206297233U (en) * | 2016-12-09 | 2017-07-04 | 闽南师范大学 | A kind of Novel antibacterial CPP films |
| CN206665224U (en) * | 2017-04-11 | 2017-11-24 | 中国农业科学院麻类研究所 | A kind of flaxen fiber Fresh-keeping Packaging for Fruits and Vegetables bag |
| CN107627706A (en) * | 2017-09-18 | 2018-01-26 | 上海海洋大学 | Degradable high-barrier active fresh-keeping film and preparation method thereof |
| CN207791610U (en) * | 2018-01-31 | 2018-08-31 | 广东新天丽控股有限公司 | A kind of high-barrier antibacterial food packaging film |
Non-Patent Citations (1)
| Title |
|---|
| 刘晓伟: "微胶囊技术在食品包装中的研究进展", 《包装工程》 * |
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Application publication date: 20201009 |
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